One set 4 packs Product Categories : Ink Cartridages 1× Black 1× Cyan 1× Magenta 1× Yellow Compatible printers: Lexmark OfficeEdge Pro4000c/Pro4000/Pro5500/Pro5500t Shippment : 1.Orders will be shipped within 2 days except for weekends and holidays .Orders will be shipped by China Post delivery from China. 2.Tracking number will be provided on website so that you can track your package online.We only ship to the shipping address that is provided during check out. 3.Please do not send a seperate email stating a different shipping address,be sure to have the correct address when checking out. About US : 1.Make sure the link cartridages you order are matched to your printer model,if you are unsure please email us ,we are happy to give you the answer. 2.All message and emails will be answered within 1 bussiness dayfrom 9.AM-6.PM(Sunday excluded).If you do not receive our reply,please kindly resend your email and we will reply as soon as possible.